I dont wanna get a whole travel bag, since the only place itll travel is in the bed of my truck and boat locker to the lake. But i do wanna protect the board, would one of those knit board socks do the trick?

Your best bet is to get a padded bag. Try getting this one, Da Kine 6' Daylite Thruster Boardbag in White/Charcoal. It runs for about $45 and is padded, has a place for your fins and will actually protect your board. There are many online places you can buy one. If you are putting the board in the back of your truck in my opinion you need more than just a sock cover. Sock covers are good for use when you put the board in a rack.